The organism implicated in the safari-case infection is transmitted by which vector?

The organism implicated in the safari-case infection is transmitted by which vector?

• A. Sand fly
• B. Tsetse fly
• C. Mosquito
• D. Tick

Answer: (B)

African sleeping sickness is caused by Trypanosoma brucei and is transmitted when an infected host is bitten by a tsetse fly. The tsetse fly picks up the parasite during a blood meal, the parasite develops inside the fly, and it is then transmitted to a new person with the fly’s next bite. The other insects listed are vectors for different diseases (sand flies for Leishmania, mosquitoes for malaria and arboviruses, ticks for various bacterial and protozoal pathogens), not for this parasite. So the tsetse fly is the vector responsible for this safari-case infection.

African sleeping sickness is caused by Trypanosoma brucei and is transmitted when an infected host is bitten by a tsetse fly. The tsetse fly picks up the parasite during a blood meal, the parasite develops inside the fly, and it is then transmitted to a new person with the fly’s next bite. The other insects listed are vectors for different diseases (sand flies for Leishmania, mosquitoes for malaria and arboviruses, ticks for various bacterial and protozoal pathogens), not for this parasite. So the tsetse fly is the vector responsible for this safari-case infection.